Receptacle-filling device.



No. 704,565. Patented July I5, 1902.

' N. D. NELSON.

REGEPTAGLE FILLING DEVICE.

(Application filed Apr. 7. 1900.)

(No Nlodel.)

NElEfllNgnn DRE UNITED STATES PATENT ()EETCE.

NELSE D. NELSON, OF ANN ARBOR, MICHIGAN.

RECEPTACLE-FILLING DEVICE.

SPECIFICATION forming part Of Letters Patent No. 704,565, dated July 15, 1902.

Application filed April 7,1900. Serial No. 11,971. (No model.)

To alt whom it may concern: with a flexible end, which can be applied for Beitknown thatLNELsED.NELSON,acitivarious kinds of receptacles. The flexible zen of the United States, residing at Ann Arnipple E can also be used as a means of start- 5 bor, in the county of W'ashtenaw and State ing and stopping the flow of the liquid by 5 of Michigan, have invented a certain new and squeezing it with the fingers. In accordance useful Improvement in Receptacle Filling with my invention the casing A is provided Devices, (Case No. 2,) of which the following with a vacuum-chamber F, which communiis a full, clear, concise, and exact description, cates with the chamber B, provided by the 60 reference being had to the accompanying casing. As a simple arrangement this chamxo drawings, forming a part of this specification. ber F is formed by a tubular structure or par- Myinvention relates to devices by which retition G, whose inner end is secured to the ceptacles such as bottles can be filled in sucthreaded end a of the casing. By such arcession from a tank or reservoir or other aprangement the liquid passing through the 65 paratus containing fluid for a large number chamber B tends todraw the liquid confined of receptacles. In such cases it is well known in the vacuum-chamber F out of such chamthat the running of the fluid out of the large ber, and thereby create a vacuum therein. apparatus produces considerable foam in the This vacuum extracts from the liquid the air small receptacles which are filled from it. which would otherwise accumulate and pro- 70 There these small receptacles are bottles, it duce foam upon the liquid. As a result the is very undesirable to have foam at the top of liquid flowing through the device will have them. It necessitates, generally, having to the air extracted from it and when it emerges wait until the foam settles and then having from the device will be absolutely free from to fill the space occupied by the foam. This foam. The air extracted from the liquid can, 75 inreality necessitates fillingthe bottles twice. if desired, be withdrawn from the vacuum- 2 5 The object of my invention is to provide a chamber by a stop-cock or valve H, secured device by which receptacles, especially botto the casing A so as to communicate with tles, can be filled without the accumulation the vacuum-chamber F. This stop-cock can of any foam. be connected, as by a flexible tube J, with a 80 To the attainment of this and other desirsuitable air-pump or similar apparatus, which able ends my invention consists in matters can be assumed to be present.

hereinafter set forth. When a number of small receptacles, such In the accompanying drawings, Figure 1 is as bottles, are being filled, a small period of an elevation of a filling device embodying my time will intervene between the flow of liquid 85 invention. Fig. 2 is a longitudinal section of for each one. I have found by experience the same. Fig. 3 is a transverse section that bottles can be filled by the device one taken on line 3 3 in Fig. 2. after another without the use of an air-pump The device illustrated in the drawings inor similar device for Withdrawing the air volves a hollow or tubular casing A, which from the chamber F. In all probability the 6 provides a chamber or passage B, through air returns to the tank or apparatus containwhich the fluid flows in passing from the large ing the liquid in the first instance and rises receptacle to the small ones which are to be to the top of the same. filled. This casingAis to be attached to the In using the apparatus it will be undertank :or source of fluid-supply and to such stood thatthe casing B and attached tubes 95 end has one of its ends a screw-threaded. are filled with the liquid and all of the air The opposite end of the casing is provided extracted, as by the stop-cock H, before bewith a suitable orifice a This orifice a ginning the filling operation. After this is coulditself be employed for directing the curdone the small receptacles can be filled one rent into the small receptacles; but as a preafter another by merely allowing the liquid 10o ferred arrangement it is provided with a to flow and stopping that flow at proper inflexible tube 0, and the latter has attached tervals. Where small receptacles are filled to it a metallic tube D, carrying a flexible with a small period of time intervening benipple E. In this way the device is provided tween the filling of each, the air extracted openings through which the liquid subsequently passes. This structure G is preferably made in a conical or flaring shape, so that the flow of liquid through it is comparatively slow. The casing A is also desirably made in a conical shape. It is also conveniently made in two longitudinal portions, which are normally secured tightly together, but can, be easily separated, as by unscrewing them, so that the interior of the device can be readily cleaned or repaired.

It will be seen that the vacuum-chamber F is to all intents and purposes a chamber closed except where it communicates with the passage B-that is to say, it has no other passages admitting air or liquid. It is in this way that the vacuum produced is effective in sucking or drawing he air backwardly and out of the liquid passing through the device. It will also be seen that the air-pump connected with the tube J draws air out of the vacuum-chamber F, this outflow of air beingin contradistinction to an inflow through the pipe or tube J.

From the foregoing it will be seen that my invention comprises a simple, practical, and efiective device for filling receptacles with liquid without the production of any foam.

What I claim in my invention is-- 40 1. A device for filling receptacles comprising a bulb or casing having an inlet and an outlet, and a flaring tubular structure having its smaller end secured to the inlet end of the casing and forming a continuation of the inlet of the casing, such tubular structure being extendedinto the chamber formed by the easing and terminating between the ends thereof so as to form between itself and the casing, a vacuum-chamber communicating with the interior of the latter. I

2. The combination with a receptacle-filling device having a passage for the liquid, and also having a vacuum-chamber communicat ing with said passage, of means for producing 5 5 a vacuum or partial vacuum, said means being connected with the receptacle-filling de-' vice so as to communicate with the vacuumchamber thereof and arranged to draw the air out of said chamber in a direction opposite that in which the liquid passes through the device.

3. Abottle-filling device comprising a tubular casing having an inlet and an outlet, and made in two separable portions, screw-threaded together, said portions being largest at their meetingpoints and tapering toward their ends; and a tubular flaring structure secured within the inlet end of one of said portions, and terminating near the large end of the same.

In witness whereof I hereunto subscribe my name this 2d day April, A. D. 1900.

NELSE D. NELSON.

Witnesses:

V. T. BARKER, D. E. RICKMAN. 

